Nathan schwartz



N. SCHWARTZ.

GAS MASK AND RESPIRATOR.

APPLICATION FILED JUNEZT. 918- Z 'zj 1 Patenfed A110. 19, 1919.

WITNESSES llV VE N 70/? A TTOIM'EYS NATHAN SCHWARTZ, OF NEW YORK, N. Y.

GAS-MASK AN'D misrma'ron.

To all whom it may concern:

Be it known that I, NATHAN SCHWARTZ, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved: Gas-Mask and Respirator, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved as mask and respirator arranged to snugly l it the face of the wearer and to prevent noxious gases, dust and other extraneous matter from reaching the mouth, nostrils or eyes of the wearer, at the same time enabling the wearer to breathe freely. Another object is to permit of readily and accurately placing the gas mask and respirator in position on the face of the wearer or removing it therefrom when not required. Another object is to make the body of the gas mask and respirator mainly out of textile material thus eliminating sheet rubber or similar material liable to deteriorate under the influence of certain gases.

With these and other objects in View, the invention consists of certain novel features of construction aS hereinafter shown and described and then specifically pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a front perspective View of the gas mask and respirator as applied;

Fig. 2 is a rear perspective view of the same;

' Fig. 3 is an enlarged'front elevation of the gas mask and respirator with part broken out;

Fig. 4 is an enlarged cross section of the exhaling device mounted in the body of the gas mask and respirator; and

I Fig. 5 is an enlarged cross section of the gas mask and respirator.

The body of-the gas mask and respirator' i made of a closely woven textile material, preferably three superim osed fabric layers 11, 12 and 13, of which t e outer and inner layers 11 and 12 are of closely woven cloth'and the intermediate layer 13 of lining or stiffening material to give the desired stiffness to the body.. The margin of the body 10 is reinforced by a sultable fabric Specification of Letters Patent.

Application filed June 27, 1918. Serial No. 242,270.

Patented Aug. 19,

binding 15 and on the inner face of this binding 15 is sewed or otherwise secured a backing strip 16 adapted to fit snugly on the skin t0 prevent fumes or gases from passing to the inside of the mask along the margin of the body. In order to fasten the mask and respirator in position on the face of the user, the sides of the body 10 are provided with elastic cords 20 and 21 having their ends spaced apart and fastened to the body intermediate the binding 15 and the backing strip 16. The cords 20 and 21 slidably engage loops 22 and 23 formed on bands 24, 25, prefera ly made of elastic material, and of which the band 24 is provided with the usual adjusting device 26 for lengthening or shortening the band. The bands 24 and are provided at their ends with connecting members 27, 28, such as a hook and rin adapted to engage one the other at the bacE of the head of the wearer (see Fig. 2) to securely fasten the mask in position on the face of the wearer. By reference to Figs. 1 and 2, it will be noticed that the cords are spread apart to readily accommodate the ears of the wearer thus preventing chafing thereof. I

The body 10 is preferably made in an upper or eye section 30 and a lower or mouth section 31, the sections being disposed at an angle one to theother, as plainly indicated in Fig. 5, the sections being united with each other at their adjacent edges by stitches 32. The upper section 30 of the body 10 is provided with a window of celluloid, mica or other suitable diaphanous and flexible material located opposite the eyes to permit free vision of the user of the mask.

In the lower portion 31 of the body 10 is inserted an inhaling member or resplrator 40, preferably formed of two layers 41 and 42 of open mesh textile fabrics. The outer layer 4-.1is preferably made of bolting cloth while the inner 1a er 42 is referably made of a fine mesh si'l c, as indicated in Fig. 3. The inhalin member is referably diamond-sha e and is located mouth an nostrils of the wearer. A pocket is arran ed on the inside of the lower section 31 o the body 10, and this pocket extends along the margin of the inhaling member 40 and is secured with the latter by rows of stitches 51 to the body 10, as plainly indicated in Fig. 5. The pocket 50 is preferably made of rubber or other impervious material and contains a removable absorbent opposlte thepad 55 preferably in the form of a sponge adapted to be saturated with a suitable liquid. It will be noticed that the outer layer'41 of the respirator forms a deflector for dust and other extraneous particles. The layer 42 of silk on account of being in contact with the moist, absorbent pad 55 takes up some of the moisture and thus fits snugly and the upper edge is preferably provided bod with a binding 61 on the inner face of which is secured a doubled-up strip 62 forming a hem for a soft'wire 63 to permit of readily fashioning the nose piece to the shape of the nose of the wearer. It will be noticed that by the arrangement described, the mask is provided with an air chamber in the lower section 31 to insure proper breathing, and an upper eye chamber separated from the lbwer chamber by the nose piece, which latter holds the window 35 a short distance away from the eyes so as not to interfere with the latter. The nose piece 60 forms a tight joint between the two chambers to prevent moisture laden air from reaching the eye chamber and to prevent such moisture from condensing and adhering to the inner face of the window 35.

An exhaling device is arranged in the lower section 31 of'the mask, preferably at one side corner of the inhaling member 40 and this exhaling device is provided with a tubular body 71 of aluminum, hard rubber or other suitable material. The body 71 extends through the several fabrics of the 10, the inhaling member 40 and the poo et 50, as plainly shown in Fig. 4, and a flange 72 is formed on the said body 71 which is glued or otherwise fastened to the inner face of the body 10 to securely hold the exhaling device 70 in position on the body 10. The inner end of the exhaling body 71 is provided with a flaring mouth 73 and the outer end 7 4 of the exhaling body 71 is bent upward and is provided with perforations 75 and a valve sea 7 d sposed below. the perforations 75. On the valve seat 76 is normally seated a valve 77 adapted to move upward by exhalating pressure passing from the inside of the mask through the tubular body 71. The valve 77 immediately closes as soon asthe pressure ceases to prevent noxious gases from passing to the inside of the mask by way of the exhaling device. In order to insure a proper and quick seating of the valve 77 use is made of a pressure device, preferably in the form of a ball 78, resting on top of the valve and located withinthe outer perforate portion 74, as plainly shown in Fig. 4. It will be noticed that by the arrangement described the valve 77 is held in a closed position even should the user bend the headdownward thus preventing gases, dust and other extraneous matter from passing intothe mask by way of the exhaling device.

The lower section 31 of the mask is fashioned snugly to fit around the chin of the wearer, as plainly indicated in the drawings to insure a tight joint between the face and the margin of the body 10.

It is understood that the gas mask is exceedingly serviceable for the protection of industrial workers who have to contend with the hazards and dangers of dust, fumes and gases. It will be noticed that the gas mask against dust and against injurious foreign particles especially if such dust or foreign bodies are of an irritating nature such as phosphorus, hypochlorites, acids, etc. The

gas mask and respirator protects the wearer" against occupational poisons fromlead, arsenic, mercury, chlorin, etc.,' by means of dust filtration. It protects against poisonous fumes and noxious gases which are com mon in the industries, such as chlorin, ni trous oxid, wood alcohol, ammonia, carbon monoxid, cyanids, etc.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A gas mask and respirator, comprising a body having an upper and a lower section, the sections standing at an angle to one another, .the upper section having a diaphanous plate therein and the lower section having a perforated inhaling member, said body and inwardly extending nose piece, and

means for securingthe body to the face ofthe wearer.

2. A gas mask and respirator, comprising a body having an. upper and a lower section, the sections standing at an angle one to the other, the upper section having a diaphanous plate therein, and the lower section having a perforated inhaling member and contalnlng an absorbent material said body being rovided on the inside at the junction of t e sections with an upwardly and inwardly extending nose piece having a wire in its edge, and means for securing the body to the face of the wearer.

3. A gas mask and respirator comprising a body having an upper and a lower section, the sections standing at an angle one being provided on the inside atthe junction of the sections with an upwardly and respirator protects the eyes of the worker to the other, the upper section having' a diaphanous plate therein and the lower section having a perforated inhaling member and containing an absorbent material, said body being provided at the junction of the section with an upwardly and inwardly ex-.

. tending nose piece, an exhaling device mounted on the body adjacent the inhalin member and having a self closing valve, an means for securing the body to the face of the wearer.

4. A gas mask and respirator, comprising a a body having an eye section provided with 1 a face bod provided with attaching means for attaching the said body to the face of the wearer, an inhaling member mounted in the said body and disposed approximately opposite the mouth of the wearer, and an exhaling device having a tubular member mounted in the body adjacent the said inhaling device, the sald tubular member having a flaring mouth at the inner end and having its outer end upturned and perforated, a valve seat in the said tubular member below the perforated end, and a selfclosing valve normally seated on the said valve seat.

6. A gas mask and respirator, comprising a face body provided with attaching means for attaching the said body to the face of the wearer, an inhaling member mounted in the said body and disposed approximatelyopposite the mouth of the wearer, an exhahn device havin a tubular member mounted in the body adj acent the said inhaling device, the said tubular member having a flaring mouth at the inner end and having its outer end upturned and perforated, a valve seat in the said tubular member below the perforated end and disposed approximately in a horizontal plane, a valve seated on the said seat and adapted to open upwardly, and a ball in the said perforated end and resting on the said valve.

7. In a as mask and respirator, a body having a upper portion and a perforated inhaling member and an absorbent material in its lower portion, said body "being provided with a nose piece and with an exhaling device, two elastic cords for eachside of the body, the cords having their ends secured to the sides of the body a distance apart to form loops, bands engaging the elastic loops, and a hook and ring on the ends of the bands.

' NATHAN SCHWARTZ.

iaphanous plate secured in lbs, 

